Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Analysis of Densification Behavior of Magnesium Powders in Extrusion using the Critical Relative Density Model

임계상대밀도모델을 이용한 마그네슘분말의 압출공정 치밀화 거동

  • Yoon, Seung-Chae (Center for Advanced Aerospace Materials, Pohang University of Science and Technology) ;
  • Chae, Hong-Jun (Department of Echo-Materials and Processing, Korea Institute of Industrial Technology(KITECH)) ;
  • Kim, Taek-Soo (Department of Echo-Materials and Processing, Korea Institute of Industrial Technology(KITECH)) ;
  • Kim, Hyoung-Seop (Department of Materials Science and Engineering, Pohang University of Science and Technology)
  • 윤승채 (포항공과대학교 항공재료연구소) ;
  • 채홍준 (한국생산기술연구원) ;
  • 김택수 (한국생산기술연구원) ;
  • 김형섭 (포항공과대학교 신소재공학과)
  • Published : 2009.02.28
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Abstract

Numerical simulations of the powder extrusion need an appropriate pressure-dependent constitutive model for densification modeling of the magnesium powders. The present research investigated the effect of representative powder yield function of the critical relative density model. We could obtain reasonable physical properties of pure magnesium powders using cold isostatic pressing. The proposed densification model was implemented into the finite element code. The finite element analysis was applied to simulation of powder extrusion of pure magnesium powder in order to investigate the densification and processing load at room temperature.

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References

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